Can you really "do more with less?" Sure thing. PF Members tell you how here.
Sustainability: historical perspective. Ideas related to sustainability have been expressed by many people and cultures throughout history. "Treat the earth well: it was not given to you by your parents, it was loaned to you by your children.
Carnegie Mellon University's Center for Atmospheric Particle Studies (CAPS) has been taking its environmental research on the road with its Mobile Lab.
A reader of EarthTalk posed an interesting question a few weeks back - does the expansion of electric and plug-in hybrid vehicles mean an increased reliance on coal?